EP 0752802 A3 19990519 - An apparatus and method for packetizing and segmenting MPEG packets
Title (en)
An apparatus and method for packetizing and segmenting MPEG packets
Title (de)
Anlage und Verfahren zur Paketierung und Segmentierung von MPEG-Paketen
Title (fr)
Dispositif et méthode pour la mise en paquets et la segmentation de paquets MPEG
Publication
Application
Priority
US 49922695 A 19950707
Abstract (en)
[origin: US5689509A] A circuit and method for optimizing efficiency in transferring a block of data having a plurality of frames of limited size from a memory element. The circuit comprises a transmit ("TX") DMA engine and a TX Segmentation engine. The TX DMA engine is responsible for accessing overhead information for the block of data within a TX data buffer from a data descriptor dedicated to that particular TX data buffer. The TX DMA engine is further responsible for reading the block of data from the memory element to be stored local thereto. The TX Segmentation engine is responsible for segmenting the block of data into a plurality of cell packets corresponding in number to the plurality of frames. Each cell packet contains in common the overhead information for the block of data to avoid the TX DMA engine re-accessing the data descriptor to obtain the same overhead information for each frame being transferred.
IPC 1-7
IPC 8 full level
G06F 13/00 (2006.01); H04L 47/43 (2022.01); H04N 7/08 (2006.01); H04N 7/081 (2006.01); H04N 7/24 (2006.01); H04N 19/00 (2014.01); H04N 21/2381 (2011.01); H04N 21/643 (2011.01); H04Q 11/04 (2006.01)
CPC (source: EP US)
H04N 21/2381 (2013.01 - EP US); H04N 21/64307 (2013.01 - EP US); H04Q 11/0478 (2013.01 - EP US); H04L 2012/5616 (2013.01 - EP US); H04L 2012/5652 (2013.01 - EP US)
Citation (search report)
- [YA] EP 0633694 A1 19950111 - DIGITAL EQUIPMENT CORP [US]
- [Y] WO 9511554 A1 19950427 - LSI LOGIC CORP [US]
- [A] BERNABEI F ET AL: "MPEG OVER ATM ISSUES: A SCENARIO OVERVIEW", PROCEEDINGS OF THE SPIE, vol. 2451, 20 March 1995 (1995-03-20), pages 297 - 309, XP000605891
Designated contracting state (EPC)
DE FR GB IT NL SE
DOCDB simple family (publication)
US 5689509 A 19971118; DE 69630084 D1 20031030; DE 69630084 T2 20040708; EP 0752802 A2 19970108; EP 0752802 A3 19990519; EP 0752802 B1 20030924; JP 3819484 B2 20060906; JP H09224042 A 19970826; SG 82563 A1 20010821
DOCDB simple family (application)
US 74855496 A 19961108; DE 69630084 T 19960708; EP 96110991 A 19960708; JP 19528496 A 19960708; SG 1996010207 A 19960703